One vertex per element, one color per generator, with an edge from x to x·s.
(9,10,12,14)(11,13,15,16)(17,18)(19,27)(20,26)(21,25)(22,23)(24,29)(28,31)(30,32)(1,2)(3,8)(4,6)(5,7)(11,15)(13,16)(17,19)(18,24)(20,28)(21,30)(22,27)(23,29)(25,31)(26,32) involution — undirected(1,3,5,6)(2,4,7,8)(9,10)(11,13)(12,14)(15,16)(17,20,23,21)(18,25,22,26)(19,28,29,30)(24,31,27,32)(1,2)(3,4)(5,7)(6,8)(9,11,12,15)(10,13,14,16)(17,21,23,20)(18,26,22,25)(19,28,29,30)(24,31,27,32)(1,2)(3,4)(5,7)(6,8)(9,10)(11,13)(12,14)(15,16)(17,22,23,18)(19,27,29,24)(20,26,21,25)(28,32,30,31)(1,4)(2,6)(3,7)(5,8)(17,19)(18,27)(20,28)(21,30)(22,24)(23,29)(25,32)(26,31) involution — undirectedA Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.